an enterprise started to rely on the internet more and more because a vast majority of services it uses are hosted in the cloud. what is the name of the primary trend that this enterprise is a part of?

The primary trend this enterprise is part of is usually called “Internet is the new network.”

Because most of its critical services now live in the cloud, the company’s day‑to‑day operations increasingly depend on wide‑area, internet‑based connectivity instead of a traditional private, on‑premises corporate network, which is exactly what that phrase describes.